Java is a widely used, high-level programming language designed to be platform-independent, meaning that programs written in Java can run on any system that supports the Java Runtime Environment (JRE). It was developed by Sun Microsystems (now owned by Oracle) and released in 1995.
Java is known for its simplicity, portability, and robustness. It is used in a wide range of applications, from mobile apps to large-scale enterprise systems. Java’s syntax is similar to C++, making it easier for developers to learn and transition to. The language emphasizes readability and maintainability, which helps in reducing development time and costs. Java’s extensive standard library provides a rich set of APIs for various tasks, including networking, data structures, and graphical user interfaces. Additionally, Java’s strong memory management and security features make it a reliable choice for developing secure and efficient applications.
| Feature | Description |
|---|---|
| Object-Oriented | Everything in Java is treated as an object. |
| Platform-Independent | Compiled into bytecode, run on any system with JVM. |
| Robust and Secure | Strong memory management, exception handling, and security features. |
| Multi-threaded | Supports multi-threading for simultaneous task execution. |
| High Performance | Relatively fast due to Just-In-Time (JIT) compilation. |
| Distributed | Suitable for building networked applications. |
| Rich API and Libraries | Provides extensive libraries for various tasks. |
This simple program prints “Hello, World!” to the console.
public class HelloWorld {
public static void main(String[] args) {
System.out.println("Hello, World!");
}
}